Package javax.script

Examples of javax.script.ScriptEngineFactory

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            String line;
            while ((line = reader.readLine()) != null) {
                try {
                    @SuppressWarnings("unchecked")
                    Class<ScriptEngineFactory> clazz = bundle.loadClass(line);
                    ScriptEngineFactory spi = clazz.newInstance();
                    registerFactory(mgr, spi);
                    extensions.addAll(spi.getExtensions());
                } catch (Throwable t) {
                    log.error("Cannot register ScriptEngineFactory " + line, t);
                }
            }
        } catch (IOException ioe) {
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        ScriptEngineManager manager = scriptAdapterFactory.getScriptEngineManager();
        List<?> factories = manager.getEngineFactories();
        for (Iterator<?> fi = factories.iterator(); fi.hasNext();) {

            ScriptEngineFactory factory = (ScriptEngineFactory) fi.next();

            pw.println("<tr class='content'>");
            pw.println("<th colspan='3'class='content container'>");
            pw.print(factory.getEngineName());
            pw.print(", ");
            pw.println(factory.getEngineVersion());
            pw.println("</th>");
            pw.println("</tr>");

            pw.println("<tr class='content'>");
            pw.println("<td class='content'>&nbsp;</td>");
            pw.println("<td class='content'>Language</td>");
            pw.println("<td class='content'>");
            pw.print(factory.getLanguageName());
            pw.print(", ");
            pw.println(factory.getLanguageVersion());
            pw.println("</td>");
            pw.println("</tr>");

            pw.println("<tr class='content'>");
            pw.println("<td class='content'>&nbsp;</td>");
            pw.println("<td class='content'>Extensions</td>");
            pw.println("<td class='content'>");
            printArray(pw, factory.getExtensions());
            pw.println("</td>");
            pw.println("</tr>");

            pw.println("<tr class='content'>");
            pw.println("<td class='content'>&nbsp;</td>");
            pw.println("<td class='content'>MIME Types</td>");
            pw.println("<td class='content'>");
            printArray(pw, factory.getMimeTypes());
            pw.println("</td>");
            pw.println("</tr>");

            pw.println("<tr class='content'>");
            pw.println("<td class='content'>&nbsp;</td>");
            pw.println("<td class='content'>Names</td>");
            pw.println("<td class='content'>");
            printArray(pw, factory.getNames());
            pw.println("</td>");
            pw.println("</tr>");

        }
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    }

    private static ScriptEngine engine(final String language) {
        ScriptEngine engine = ENGINES.get().get(language);
        if (engine == null) {
            final ScriptEngineFactory factory = ENGINE_FACTORIES.get(language);
            engine = factory.getScriptEngine();
            ENGINES.get().put(language, engine);
        }
        return engine;
    }
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                in.close();
                Class<?> cls = bundle.loadClass(className);
                if (!ScriptEngineFactory.class.isAssignableFrom(cls)) {
                    throw new IllegalStateException("Invalid ScriptEngineFactory: " + cls.getName());
                }
                ScriptEngineFactory factory = (ScriptEngineFactory) cls.newInstance();
                List<String> names = factory.getNames();
                for (String test : names) {
                    if (test.equals(name)) {
                        ClassLoader old = Thread.currentThread().getContextClassLoader();
                        ScriptEngine engine;
                        try {
                            // JRuby seems to require the correct TCCL to call getScriptEngine
                            Thread.currentThread().setContextClassLoader(factory.getClass().getClassLoader());
                            engine = factory.getScriptEngine();
                        } finally {
                            Thread.currentThread().setContextClassLoader(old);
                        }
                        LOG.trace("Resolved ScriptEngineFactory: {} for expected name: {}", engine, name);
                        return engine;
                    }
                }
                LOG.debug("ScriptEngineFactory: {} does not match expected name: {}", factory.getEngineName(), name);
                return null;
            } catch (Exception e) {
                LOG.warn("Cannot create ScriptEngineFactory: " + e.getClass().getName(), e);
                return null;
            }
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                in.close();
                Class cls = bundle.loadClass(className);
                if (!ScriptEngineFactory.class.isAssignableFrom(cls)) {
                    throw new IllegalStateException("Invalid ScriptEngineFactory: " + cls.getName());
                }
                ScriptEngineFactory factory = (ScriptEngineFactory) cls.newInstance();
                List<String> names = factory.getNames();
                for (String test : names) {
                    if (test.equals(name)) {
                        ClassLoader old = Thread.currentThread().getContextClassLoader();
                        ScriptEngine engine;
                        try {
                            // JRuby seems to require the correct TCCL to call getScriptEngine
                            Thread.currentThread().setContextClassLoader(factory.getClass().getClassLoader());
                            engine = factory.getScriptEngine();
                        } finally {
                            Thread.currentThread().setContextClassLoader(old);
                        }
                        LOG.trace("Resolved ScriptEngineFactory: {} for expected name: {}", engine, name);
                        return engine;
                    }
                }
                LOG.debug("ScriptEngineFactory: {} does not match expected name: {}", factory.getEngineName(), name);
                return null;
            } catch (Exception e) {
                LOG.warn("Cannot create ScriptEngineFactory: " + e.getClass().getName(), e);
                return null;
            }
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                in.close();
                Class cls = bundle.loadClass(className);
                if (!ScriptEngineFactory.class.isAssignableFrom(cls)) {
                    throw new IllegalStateException("Invalid ScriptEngineFactory: " + cls.getName());
                }
                ScriptEngineFactory factory = (ScriptEngineFactory) cls.newInstance();
                List<String> names = factory.getNames();
                for (String test : names) {
                    if (test.equals(name)) {
                        ClassLoader old = Thread.currentThread().getContextClassLoader();
                        ScriptEngine engine;
                        try {
                            // JRuby seems to require the correct TCCL to call getScriptEngine
                            Thread.currentThread().setContextClassLoader(factory.getClass().getClassLoader());
                            engine = factory.getScriptEngine();
                        } finally {
                            Thread.currentThread().setContextClassLoader(old);
                        }
                        LOG.trace("Resolved ScriptEngineFactory: {} for expected name: {}", engine, name);
                        return engine;
                    }
                }
                LOG.debug("ScriptEngineFactory: {} does not match expected name: {}", factory.getEngineName(), name);
                return null;
            } catch (Exception e) {
                LOG.warn("Cannot create ScriptEngineFactory: " + e.getClass().getName(), e);
                return null;
            }
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      if ( (languageName!=null)
           && (factoryClassName!=null)
         ) {
        try {
          Class<?> factoryClass = ReflectUtil.loadClass(parse.getClassLoader(), factoryClassName);
          ScriptEngineFactory scriptEngineFactory = (ScriptEngineFactory) factoryClass.newInstance();
          scriptEngineManager.registerEngineName(languageName, scriptEngineFactory);
        } catch (Exception e) {
          parse.addProblem("couldn't instantiate ScriptEngineFactory "+factoryClassName, e);
        }
      }
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                in.close();
                Class<?> cls = bundle.loadClass(className);
                if (!ScriptEngineFactory.class.isAssignableFrom(cls)) {
                    throw new IllegalStateException("Invalid ScriptEngineFactory: " + cls.getName());
                }
                ScriptEngineFactory factory = (ScriptEngineFactory) cls.newInstance();
                List<String> names = factory.getNames();
                for (String test : names) {
                    if (test.equals(name)) {
                        ClassLoader old = Thread.currentThread().getContextClassLoader();
                        ScriptEngine engine;
                        try {
                            // JRuby seems to require the correct TCCL to call getScriptEngine
                            Thread.currentThread().setContextClassLoader(factory.getClass().getClassLoader());
                            engine = factory.getScriptEngine();
                        } finally {
                            Thread.currentThread().setContextClassLoader(old);
                        }
                        LOG.trace("Resolved ScriptEngineFactory: {} for expected name: {}", engine, name);
                        return engine;
                    }
                }
                LOG.debug("ScriptEngineFactory: {} does not match expected name: {}", factory.getEngineName(), name);
                return null;
            } catch (Exception e) {
                LOG.warn("Cannot create ScriptEngineFactory: " + e.getClass().getName(), e);
                return null;
            }
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    public ScriptEngine getEngineByName(String shortName) {
        if (shortName == null) {
            throw new NullPointerException("Null shortName");
        }
        ScriptEngineFactory factory = nameMap.get(shortName);
        if (factory == null) {
            throw new IllegalArgumentException("No engine for " + shortName);
        }
        ScriptEngine engine = factory.getScriptEngine();
        engine.getContext().setBindings(globalMap, ScriptContext.GLOBAL_SCOPE);
        return engine;
    }
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    public ScriptEngine getEngineByExtension(String extension) {
        if (extension == null) {
            throw new NullPointerException("Null extension");
        }
        ScriptEngineFactory factory = extensionMap.get(extension);
        if (factory == null) {
            throw new IllegalArgumentException("No engine for " + extension);
        }
        ScriptEngine engine = factory.getScriptEngine();
        engine.getContext().setBindings(globalMap, ScriptContext.GLOBAL_SCOPE);
        return engine;
    }
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